Distance between cities › USA › South Dakota › Harrison, SD › Distance from Harrison to Polson Book Hotels

Distance from Harrison, SD to Polson, MT

Distance

1,004 mi

Time

17 hours 24 mins

Gas Cost

$94 - $182

There are 809.93 miles from Harrison to Polson in northwest direction and 1,004 miles (1,615.78 kilometers) by car, following the I-90 route.

Harrison and Polson are 17 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from Harrison, SD to Polson, MT.

Please note the time difference between Harrison, SD and Polson, MT is 1 hour. The current time in Harrison is 8:13 am and the current time in Polson is 7:13 am.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Polson, MT? Here there are some offers to rent a car in Harrison, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Harrison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 40.34 gallons of gas to cover the route between Harrison, SD and Polson, MT.

The estimated cost of gas to go from Harrison to Polson is $131.58.

During the route, an average car will release 790.26 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Harrison, SD and Polson, MT

If you want to meet halfway between Harrison, SD and Polson, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.596621 and -106.833006, or 45º 35' 47.8356" N, 106º 49' 58.8216" W. This location is 502.18 miles away from Harrison, SD and Polson, MT and it would take approximately 8 hours 42 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Busby, MT, situated 506 miles from Harrison, SD and 499 miles from Polson, MT. It would take 8 hours 57 mins to go from Harrison to Busby and 8 hours 29 mins to go from Polson to Busby.